2780948 has 24 divisors (see below), whose sum is σ = 5155584. Its totient is φ = 1310400.

The previous prime is 2780933. The next prime is 2780951. The reversal of 2780948 is 8490872.

2780948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811 + ... + 5357.

It is an arithmetic number, because the mean of its divisors is an integer number (214816).

2^2780948 is an apocalyptic number.

It is an amenable number.

2780948 is a deficient number, since it is larger than the sum of its proper divisors (2374636).

2780948 is a wasteful number, since it uses less digits than its factorization.

2780948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2780948 is about 1667.6174621297. The cubic root of 2780948 is about 140.6255679319.

The spelling of 2780948 in words is "two million, seven hundred eighty thousand, nine hundred forty-eight".